There's also phage therapy: https://en.wikipedia.org/wiki/Phage_therapy Which is...

		iknowverylittle on July 21, 2018 \| parent \| context \| favorite \| on: A drug for smallpox has been approved, even though... There's also phage therapy: https://en.wikipedia.org/wiki/Phage_therapy Which is using viruses to kill bacteria. Also I imagine that gene editing might also become a tool in combating infections in the near future.

Smallpox is a virus so you'd need a virophage or vaccines.